Refrigerated merchandiser with tunable airflow discharge

A merchandiser comprising:

• a case defining a shelf configuration having a deck plate and one or more shelves, the case including a base and a rear wall cooperating to at least partially define a product display area;
• an air passageway extending through the base and at least partially along the rear wall;
• a fan in communication with the air passageway and configured to generate an airflow through the air passageway;
• a discharge grill positioned in the air passageway adjacent to the rear wall and below all of the one or more shelves, the discharge grill including one or more vanes having a discharge angle to direct the airflow upward from the base through a portion of the air passageway and outward from the air passageway along the shelf configuration;
• and
• a vane control coupled to the one or more vanes and including a mechanism configured to adjust the discharge angle of the one or more vanes to control the airflow through the merchandiser along the shelf configuration and based at least in part on the shelf configuration.